At least 80 people were killed and 350 wounded on Wednesday when explosives were detonated in Kabul’s diplomatic quarter, near the German Embassy.

What We Know
■ At least 80 people were killed and 350 wounded on Wednesday when explosives were detonated in Kabul’s diplomatic quarter, near the German Embassy. An official traced the blast to a tanker truck.

■ The attack was one of the deadliest in the Afghan war, and the toll was expected to rise.

■ The explosion could be heard throughout the central city. Windows were shattered a mile away.

■ The German Embassy was extensively damaged, and an Afghan security guard working there was killed.

What We Don’t Know
■ Who is responsible for the attack. A spokesman for the Taliban said they were not behind the bombing.

■ Whether the target was one of the embassies, the presidential palace or something else.

■ The identity and background of most of the victims. Aside from the Afghan security guard, the BBC said an Afghan driver who worked for the network had died, as did a technology worker for the Afghan television channel ToloNews.